import java.util.Scanner;

public class Date {
    public int year;
    public int month;
    public int day;

    public void input(int year,int month,int day) {
        this.year = year;
        this.month = month;
        this.day = day;
    }

    public Date(){
        this(1988,1,1);
    }
    public Date(int year,int month,int day){
        this.year = year;
        this.month = month;
        this.day = day;
    }


    public void printf(){
        System.out.println("年："+this.year+" 月："+this.month+" 日："+this.day);
    }
}

class user{
    public static void main(String[] args) {
        Date date = new Date(2024,4,28);

        date.printf();
    }
}
